A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5930-00-372-5642
NSN 5895-01-067-7957
NSN 6150-00-089-2466
NSN 5930-01-253-1472
NSN 5950-01-073-4702
NSN 6320-01-017-5274
NSN 5920-01-314-4858
NSN 5999-01-527-2002
NSN 5999-01-627-8257
NSN 6110-01-277-0602
NSN 6650-01-597-6041
NSN 5935-00-891-2486